Enabling the update connnector setting in unit test

Signed-off-by: Sicheng Song <[email protected]>

plugin/src/test/java/org/opensearch/ml/rest/RestMLCreateConnectorActionTests.java

@@ -64,6 +64,7 @@ public class RestMLCreateConnectorActionTests extends OpenSearchTestCase {
     public void setup() {
         MockitoAnnotations.openMocks(this);
         when(mlFeatureEnabledSetting.isRemoteInferenceEnabled()).thenReturn(true);
+        when(mlFeatureEnabledSetting.isUpdateConnectorEnabled()).thenReturn(true);
         restMLCreateConnectorAction = new RestMLCreateConnectorAction(mlFeatureEnabledSetting);
 
         threadPool = new TestThreadPool(this.getClass().getSimpleName() + "ThreadPool");